Granted Patent
Utility
US 6,316,861 · App. 09/420,942
Low-loss surface acoustic wave filter on quartz substrate with optimized cut
Inventors:
Sylvain Ballandras, Marc Solal, Emmanuelle Briot
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Oct 19, 1999
Inventors
Sylvain Ballandras
Marc Solal
Emmanuelle Briot
Assignee (at issue)
Thomson-CSF
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.